Composition of matter for the treatment of newly-plastered surfaces.



UNITE STATES PATENT OFFICE.

TVILLIAM AFFELHOY, OF CINCINNATI, OHIO.

COMPOSITION OF MATTER FOR THE TREATMENT OF NEWLY-PLASTERED SURFACES.

Specification of Letters Patent.

Patented Dec. 25, 1906.

Application filed August 22, 1906. Serial No. 331,584.

To all whmn it may concern.-

Be it known that I, T/VILLIAM AFFELHOY, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented a certain new and useful Composition of Matter for the Treatment of Newly-Plastered Surfaces, of which the following is a specification.

My invention is principally applicable to the treatment of newly-plastered walls and ceilings prior to receiving their decorative finish, which latter usually consists in tinting or applying water or other colors, oil colors, paint, varnish, and the like, and my invention permits the application of the decorative finish within a minimum time after the completion of the plastering of the walls or ceilings and prevents the deleterious effect usually present when the decorative finish is applied to the plastered wall or ceiling shortly after being plastered.

It has been found in practice that if a decorative finish such as above mentioned is applied to plastered Walls or ceilings within a short time after the same have been plastered or while the walls or ceilings are still in what is known as heated or hot state, owing to the presence, for instance, of lime in the plaster, that the plaster will draw out the colors of the decorative finish and spoil the decorative effect of the finish. This deleterious effect is avoided by the application of my invention, and I have found that in practice where my invention is applied that plastered surfaces may be supplied with their decorative finish within as short a time as a week after the plastering has been done without ill effect upon the decorative finish. I have also found in practice that after a newly-plastered wall or ceiling has been treated with my invention a decorative finish in the form of wallpaper may be applied without discoloration or ill effect upon the colors in the paper and without danger of having the paper peel from the wall.

My invention consists in providing a heatextracting agency, hereinafter more fully de scribed and claimed, with which to treat newly-plastered surfaces, walls, or ceilings for quickly destroying the injurious heating or hot condition in the plaster prior to the application of the decorative finish thereto. The composition of matter I prefer to employ for this purpose consists, preferably, of a mixture comprising acetic acid, (6.9., what is known as commercial acetic acid of, say,

thirty-six per cent. purity,) fusel-oil, (commercial,) copperas, (commercial,) and water, although I find that if desired the cop eras may be omitted and the fusel-oil may a so be dispensed with, although by omitting the copperas or dispensing with the fusel-oil a less beneficial effect is produced. The proportion in which I prefer to mix these ingreclients is eight gallons of acetic acid, one-half gallon of fusel-oil, two pounds of copperas, and forty-one and one-half gallons of water, comprising substantially fifty gallons, which may be readily mixed in an ordinary barrel. It is of course obvious that these proportions may be varied or ingredients having the same properties substituted without departing from the spirit of my invention.

The advantage of the copperas is that besides aiding in the combinatlon in extracting the heat from the plaster it has a tendency to disclose the spots in the plastering which are hottest by producing slight discolorations, which are usually of a reddish, brownish, or bluish tinge and show the condition of the plastering. After the application of one coat of my composition of matter a second coat may be applied or the secondcoat may be limited in area to the portions of the wall or ceiling which have been shown as hottest by the application of the first coat. The second coat, owever, is not a necessity. The discolorations guide the painter or deco rator in the application of the decorative finish. For instance, in applying a tinting composition, paint or varnish, the workman will give those portions which show up colorations a heavier coat than the balance of the wall or ceiling, so that when the decorative finish is applied the result will be an even finish to the whole surface, wall, or ceiling being decorated.

' In employing my improved composition of matter I apply it directly to the newly-plastered surface. The application thereof will destroy the heat in the plastering. In order to destroy the absorbing properties of the plaster, the plaster may then be provided with a coat of varnish size of usual composition, not more particularly specified because well known, after which the tinting or paint is applied.

My improved composition may also be ap plied for other purposes in beneficial manner. For instance, its application will remove the salt eter stains from pressed-brick buildings or t e like. a

Having thus fully described my invention, described comprising acetic acid, fusel-oil, What I claim as new, and desire to secure by copperas and Water, in substantially the pro- Letters Patent, is i portions specified.

1. A. composition of matter for the purpose i In testimony whereof I have hereunto sub- I 5 5 described comprising acetic acid, copperas i scribed my name hereto in the presence of and Water, substantially as described. tWo subscribing Witnesses.

2. A composition of matter for the purpose i described comprising acetic acid, fusel-oil, I copperas and water 'substantially as de 10 scribed.

WILLIAM AFFELHOY.

Witnesses H. T. NIGOLAY,.

3. A composition of matter for the purpose A. F. HERBsLEB. 

